Submission #371083

#	Time	Username	Problem	Language	Result	Execution time	Memory
371083		nicolaalexandra	Hedgehog Daniyar and Algorithms (IZhO19_sortbooks)	C++14	100 / 100	2625 ms	67632 KiB

sortbooks

#include <bits/stdc++.h>
#define DIM 1000010
using namespace std;

struct query{
    int x,val,poz;
};
vector <query> qry[DIM];

int v[DIM],aint[DIM*4],ans[DIM];
deque <int> d;
int n,m,i,sol,x,y,val;


void update (int nod, int st, int dr, int poz, int val){
    if (st == dr){
        aint[nod] = max (aint[nod],val);
        return;
    }
    int mid = (st+dr)>>1;
    if (poz <= mid)
        update (nod<<1,st,mid,poz,val);
    else update ((nod<<1)|1,mid+1,dr,poz,val);

    aint[nod] = max (aint[nod<<1],aint[(nod<<1)|1]);
}

void query (int nod, int st, int dr, int x, int y){
    if (x <= st && dr <= y){
        sol = max (sol,aint[nod]);
        return;
    }
    int mid = (st+dr)>>1;
    if (x <= mid)
        query (nod<<1,st,mid,x,y);
    if (y > mid)
        query ((nod<<1)|1,mid+1,dr,x,y);
}

int main (){

    //ifstream cin ("date.in");
    //ofstream cout ("date.out");

    cin>>n>>m;
    for (i=1;i<=n;i++)
        cin>>v[i];

    for (i=1;i<=m;i++){
        cin>>x>>y>>val;
        qry[y].push_back({x,val,i});
        ans[i] = 1;
    }

    for (i=1;i<=n;i++){
        while (!d.empty() && v[i] >= v[d.back()])
            d.pop_back();

        if (!d.empty())
            update (1,1,n,d.back(),v[i] + v[d.back()]);

        d.push_back(i);

        for (auto it : qry[i]){
            sol = 0;
            query (1,1,n,it.x,i);
            if (sol > it.val)
                ans[it.poz] = 0;
        }
    }

    for (i=1;i<=m;i++)
        cout<<ans[i]<<"\n";

    return 0;
}

• Subtask 1: 8 / 8
• Subtask 2: 9 / 9
• Subtask 3: 13 / 13
• Subtask 4: 17 / 17
• Subtask 5: 30 / 30
• Subtask 6: 23 / 23